Non-isolated sources of electromagnetic radiation on a chip by multipole decomposition with nanoscale apertures
Creation of single photon sources on a chip is a mid-term milestone on the road to chip-scale quantum computing. An in-depth understanding of the extended multipole decomposition of non-isolated sources of electromagnetic radiation is not only relevant for a microscopic description of fundamental phenomena, such as light propagation in a medium, but also for emerging applications such as single-photon sources. To design the single photon emitters on a chip, we consider the ridge dielectric waveguide perturbed with the cylindrical inclusion. For this, we expanded the classical multipole decomposition that allows simplifying and interpreting complex optical interactions in an intuitive way to be suited to analyze the light-matter interactions with non-isolated objects that are parts of a larger network, e.g. individual components such as a single photon source of an optical chip. It is shown that our formalism can be used to design a single photon sources on a chip.